shapefile

问题 I prepared the following Python script to this XML into ESRI Shapefiles. The starting point for the script was this post. #!/usr/bin/env python # -*- coding: utf-8 -*- # # Requires pyshp: https://pypi.python.org/pypi/pyshp # # Conversion for http://daten.berlin.de/datensaetze/liste-der-gedenktafeln-berlin # File: http://gedenktafeln-in-berlin.de/index.php?id=31&type=123 # from xml.etree import ElementTree from datetime import datetime import shapefile import os def get_value(list, index,

问题 I have a file in .shp format and I need it to convert it to an Excel spreadsheet programmatically. I want to do this using PHP or JavaScript. 回答1: Once I've used small PHP lib ShapeFile, you can get it in phpclasses.org. Although it is a bit of not so good design, it works. Here is a little example from my own code: require_once 'lib/ShapeFile.inc.php'; $shp = new ShapeFile($filename, array('noparts' => false)); if ($shp->getError() !== '') print_r($shp->getError()); else { $records = array()

问题 I am trying to move my agents from one vertex of my road network to another one which the following code. However, I got an error, saying that MOVE-TO expected input to be an agent but got NOBODY instead. If new location is already defined which this code as part of the agentset of slocation , where is the problem? to go ask citizens [start-movement] move end to start-movement let nearest-node min-one-of nodes [distance myself] set slocation nearest-node move-to slocation end to move ask

问题 Just to try to filter a shape file to ease plotting I have a shape file downloaded from UK gov: http://geoportal.statistics.gov.uk/datasets/7ff28788e1e640de8150fb8f35703f6e_1/data?geometry=-76.678%2C45.365%2C69.572%2C63.013&orderBy=lad16cd&orderByAsc=false&where=%20(UPPER(lad16cd)%20like%20%27%25E0800000%25%27%20OR%20UPPER(lad16cd)%20like%20%27%25E08000010%25%27)%20 Based on this: https://www.r-bloggers.com/r-and-gis-working-with-shapefiles/ I wrote but do not know to filter : setwd("~

问题 I have a SpatialLinesDataFrame that was produced from a contour of marine environmental data. The contour is not closed where it meets land. I would like to close the contour so that I can calculate the area within the contour. I have a shapefile for the coastline. So, I would like to use the coastline shapefile to close the contour lines. Edit: Here's an image illustrating what I am trying to do. The black line is the contour and the red is the coastline. I want the area enclosed by the

问题 I have a Shapefile map of Maryland separated by zipcode. What I'd like to do is color each area based on a value I'm looking up in a database. Currently, I'm using ASP.NET with the SharpMap package. The basic questions are: 1) How do I associate a shape with its zipcode? I can generate the list of zipcodes using SharpMap's ExecuteIntersectionQuery with the BoundingBox set as the extent of the map, but I have no idea how to then connect each row of the resulting table with the shape it

问题 I am trying to identify the zip code for each set of lat/lon coordinate using a shapefile. Lat Lon data is extracted from: https://data.cityofchicago.org/Public-Safety/Crimes-2017/d62x-nvdr (Crimes_-_2001_to_present.csv) Shapefile: https://www2.census.gov/geo/tiger/PREVGENZ/zt/z500shp/ zt17_d00.shp (zip code definitions for the state of Illinois) library(rgeos) library(maptools) ccs<-read.csv("Crimes_-_2001_to_present.csv") zip.map <- readOGR("zt17_d00.shp") latlon<-ccs[,c(20,21)] str(latlon)

问题 I'm trying to display the Italian cartographic shapefiles, for example this one, using D3.js I can load the Zip file on MapShaper, look at the map, simplify it and export to TopoJSON. I can load back the TopoJSON in MapShaper and it still looks ok. But when I try to display it using D3.js, I get a bunch of spaghetti: Beauty, isn't it? The code is taken straight from the examples. The projection center, rotation, and parallels are supposed to be the canonical ones for Italy, but it doesn't

问题 I have a number of shapefiles in my repo that were too large, thereby causing my push to GitHub to fail. I initially tried to create a .gitignore file that excludes most of the extensions in shapefile bundles. It still tried to push the shapefiles. After some searching, I found I had to clear the cache: git rm -rf --cached . git add . However, once I tried to commit and then push again, I found that this did not fix the problem. The same shapefile was hanging things up. After much messing

问题 I want to combine the SpatialPolygonsDataFrame of two neighbour countries like Pakistan and India. My MWE is below: library(raster) Pakistan.adm1.spdf <- getData( "GADM" , country = "Pakistan" , level = 1 ) India.adm1.spdf <- getData( "GADM" , country = "India" , level = 1 ) How can I combine these two shapefiles? 回答1: From the answer to this question, use rbind and the argument makeUniqueIDs . adm1.spdf <- rbind(Pakistan.adm1.spdf, India.adm1.spdf, makeUniqueIDs = TRUE) plot(adm1.spdf) 来源：